actual footage of a cell moving through the body

When scientists look at cells through microscopes they are usually flat and pressed between glass slides. Seeing cells this way is useful but does not give the ability to directly see movement or function.

A recent imaging breakthrough has captured 3D footage of an immune cell traveling through the inner ear of a zebrafish (the tiny 1.5-inch striped fish you see at the pet store). In the video, you can see the yellow immune cell move along while grabbing up blue sugar molecules.

Scientists hope to make this technique practical and accessible so that more researchers can learn about how cells function in their native environments.

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